The USB Implementers Forum (USB-IF) today announced the upcoming Intel 7 Series Chipset and Intel C216 Chipset Family host silicon has achieved SuperSpeed USB certification by the USB-IF. The certified solution includes four SuperSpeed USB ports integrated into the chipset, enabling manufacturers to conveniently incorporate SuperSpeed USB into their systems.

“This is a tremendous milestone for the industry,” said Jeff Ravencraft, USB-IF President & COO. “With USB-IF certification of Intel’s integrated USB host silicon, host manufacturers will be able to bring SuperSpeed USB to the masses. Intel’s commitment to SuperSpeed USB will continue to provide peripheral device manufacturers a compelling incentive to develop a growing number of diverse SuperSpeed USB products.”

“Intel’s integration of SuperSpeed USB into its upcoming core logic chipset is critical because it allows cost-conscious PC OEMs to offer the technology at a very competitive price point,” said Brian O’Rourke, Research Director, In-Stat. “Additionally, SuperSpeed USB adoption in PCs is leading to broad adoption in PC peripherals, consumer electronics and mobile devices.”

The USB-IF will be hosting the USB Tech Zone at the Consumer Electronics Show 2012 in Las Vegas during January 10-13, 2012. The USB Tech Zone is located in the Las Vegas Convention Center South Hall 3, Booth #30769. To learn more about SuperSpeed USB, please visit www.usb.org.

^^this, if you have an older 1155 motherboard with Sandy Bridge PCH you won't have USB3.0 support (native) however your motherboard has probably a third party controller.
It should be slower than the native supported one but I think you aren't going to see much of a difference unless you use a 3.0 device that can saturate the entire 3.0 bandwidth.
As for PCIe 3.0 you won't be sure of the support until PCIe 3.0 devices will be tested, it is still unknown for x79 too even though Intel said it should work for LGA 2011